A REVISION OF ORIENTAL SCIURID.E. 245 



on to the upper surface of the skull more than the interorbital 

 breadth ; lateral profile lines gently sinuous, without sharp concavity 

 at the point above mentioned or strong shoulder at the front end of 

 the zygoma. Postorbital processes small. 



Teeth brachvodont, with low ridges. P 3 small in proportion 



to jD 4 . 



Range. — S. China and Formosa, Himalayas, Burma, Malay 

 Peninsula and Borneo. 



Type. — Zetis rufigenis (Sciurus ruftgenis, Blanf.) 



Other species : lokriah, Hodgs., pernyi, M. Edw., everetti, Thos., 

 pyrrhomerus, Thos., and the Formosan species described below. 



Within the genus there is considerable variation in the deve- 

 lopment of the snout, Z. pyrrliomerus having the longest and Z. 

 lokriah the shortest. 



This has been long recognized as a natural group, but has been 

 assigned, I now think wrongly, to Funambulus, as it would really 

 seem to be a long-nosed ally of true Sciurus. 



It would therefore have no close relationship to the other long- 

 nosed Oriental form, Rhinosciurus, which seems to be a member of 

 the Xerine series of genera, and has teeth remarkably like those of 

 Menetes. 



In order to assist other workers in the generic reference of 

 the different species of Oriental squirrels I give the following table, 

 which shows the prominent species, including those mentioned under 

 Sciurus by Blanford, Hose, and Anderson, sorted according to the 

 modern genera. But I have not attempted to enumerate all the 

 more recently described species, as so many are mere variants of the 

 prominent species included in the table. 



Ratufa bicolor. Sciurus caniceps. 



gigantea. castaneoventiis. 



indica. chineusis. 



macrourus. concolor. 



melanopepla. erythraeus. 



nanogigas. ferrugineus. 



notabilis. ■ finlaysoni. 



Sciurus alstoni.-f fraterculus. 



atrodoisali.s. gordoni. 



brookei. griseimanus. 



\ Sarasinorum, Meyer, is probably a synonym of alstoni, Andeison. 



